CA2728392C - Downlink transmission in a multiple-user multiple-input multiple-output ("mu-mimo") wireless communication system - Google Patents

Downlink transmission in a multiple-user multiple-input multiple-output ("mu-mimo") wireless communication system Download PDF

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Publication number
CA2728392C
CA2728392C CA2728392A CA2728392A CA2728392C CA 2728392 C CA2728392 C CA 2728392C CA 2728392 A CA2728392 A CA 2728392A CA 2728392 A CA2728392 A CA 2728392A CA 2728392 C CA2728392 C CA 2728392C
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CA
Canada
Prior art keywords
cqi
values
base station
wireless devices
channel quality
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2728392A
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English (en)
French (fr)
Other versions
CA2728392A1 (en
Inventor
Alireza Bayesteh
Amin Mobasher
Hua Xu
Yi Yu
Yongkang Jia
Jack Anthony Smith
Zhijun Sam Cai
Shiwei Gao
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BlackBerry Ltd
Original Assignee
BlackBerry Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BlackBerry Ltd filed Critical BlackBerry Ltd
Publication of CA2728392A1 publication Critical patent/CA2728392A1/en
Application granted granted Critical
Publication of CA2728392C publication Critical patent/CA2728392C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0641—Differential feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
CA2728392A 2010-01-18 2011-01-17 Downlink transmission in a multiple-user multiple-input multiple-output ("mu-mimo") wireless communication system Expired - Fee Related CA2728392C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/689,223 US8406332B2 (en) 2010-01-18 2010-01-18 Downlink transmission in a multiple-user multiple-input multiple-output (“MU-MIMO”) wireless communication system
US12/689,223 2010-01-18

Publications (2)

Publication Number Publication Date
CA2728392A1 CA2728392A1 (en) 2011-07-18
CA2728392C true CA2728392C (en) 2014-09-23

Family

ID=43064627

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2728392A Expired - Fee Related CA2728392C (en) 2010-01-18 2011-01-17 Downlink transmission in a multiple-user multiple-input multiple-output ("mu-mimo") wireless communication system

Country Status (4)

Country Link
US (1) US8406332B2 (zh)
EP (1) EP2346189A1 (zh)
CN (1) CN102195698B (zh)
CA (1) CA2728392C (zh)

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EP2555444B1 (en) * 2010-03-29 2017-03-08 LG Electronics Inc. Method and apparatus for efficient feedback in a wireless communication system supporting multiple antennas
US9088322B2 (en) 2010-03-31 2015-07-21 Nokia Technologies Oy Codebook subset restriction based on codebook grouping
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WO2011121499A2 (en) * 2010-04-02 2011-10-06 Koninklijke Philips Electronics N.V. A method for operating a secondary station
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JP5276047B2 (ja) * 2010-04-30 2013-08-28 株式会社エヌ・ティ・ティ・ドコモ 移動端末装置
CN102291209B (zh) * 2010-06-20 2014-04-02 上海贝尔股份有限公司 增强长期演进的管理设备中控制上行传输的方法及装置
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US9331765B2 (en) 2011-02-01 2016-05-03 Blackberry Limited Mixed rank downlink multi-user interference alignment scheme
EP2671327B1 (en) 2011-02-01 2019-07-24 BlackBerry Limited Downlink multi-user interference alignment scheme
US9264931B2 (en) 2011-09-28 2016-02-16 Lg Electronics Inc. Method and device for reporting channel state information in wireless communication system
WO2013055093A1 (ko) * 2011-10-10 2013-04-18 엘지전자 주식회사 무선 통신 시스템에서 채널상태정보 보고 방법 및 장치
US9014150B2 (en) * 2012-03-06 2015-04-21 Industrial Technology Research Institute Method and apparatus of enhancing performance of downlink multi-user multiple-input-multiple-output transmissions in wireless communication system
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US9385852B2 (en) * 2012-05-10 2016-07-05 Telefonaktiebolaget Lm Ericsson (Publ) Methods and arrangements for CSI reporting
US8964871B2 (en) 2012-05-14 2015-02-24 Blackberry Limited Codebook based downlink multi-user interference alignment scheme
CN103580741B (zh) * 2012-07-30 2016-12-21 普天信息技术研究院有限公司 一种下行mu‑mimo用户配对方法
EP2701333B1 (en) * 2012-08-23 2019-05-01 Alcatel Lucent Method and apparatus for transmitting channel feedback information in a wireless communication system and method and apparatus for receiving channel feedback information in a wireless communication system
EP2896138B1 (en) * 2012-09-11 2018-10-31 Telefonaktiebolaget LM Ericsson (publ) Finding channel state information with reduced codebook in a multi-antenna wireless communication system
JP6134329B2 (ja) 2012-11-06 2017-05-24 京セラ株式会社 移動通信システム、ユーザ端末、及びプロセッサ
US9042255B2 (en) * 2013-01-18 2015-05-26 Nokia Solutions And Networks Oy Methods and apparatus for device scheduling
CN103973350B (zh) * 2013-02-04 2018-03-23 普天信息技术研究院有限公司 一种多用户传输模式的多用户配对方法
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Also Published As

Publication number Publication date
CN102195698B (zh) 2014-03-12
CA2728392A1 (en) 2011-07-18
CN102195698A (zh) 2011-09-21
US8406332B2 (en) 2013-03-26
US20110176629A1 (en) 2011-07-21
EP2346189A1 (en) 2011-07-20

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